What are the tests for achondroplasia?

Dwarfism.: It occurs as a sporadic mutation in approximately 75% of cases (associated with advanced paternal age) or may be inherited as an autosomal dominant genetic disorder. Achondroplasia can be detected before birth by the use of prenatal ultrasound. A dna test can be performed before birth to detect homozygosity, wherein two copies of the mutant gene are inherited. Also we could use radiology findings.